Death Scissors? Well, break out Balrog, hit it dead in tracks, then shoot at it. I would not know that unless we had a secret mission to do exactly that. Dead Scissors are easy to kill if u master it.Somehow managed to get No Damage for Qlipoth and Sky Hunter, Hell and Hell mode.
You gotta really abuse the Break Age moves to make some areas "surefire".
I still don't have any "surefire" strategies for Death Scissors, so for Sky Hunter, I parry them all with Gerbera and finish them off with Buster.
Helps if you could shoot down all the bookshelves or fire a Punch Line to smash them all, giving you some space before the Death Scissor spawns.